Illuminated sign.



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UNITED sTATEws- PATENT oEEioE.:

WILLIAM T. BRADSHAW, OF OAKLAND, AND CHARLES H. TOWNSEND ABD OSCAR F. ERICKSON, OF BERKELEY, CALIF ORXIA.

ILLUMINATED SIGN.

Speccation of Letters Patent.

Patented Nov. 27, 1906.

Application ined August 7.1906. serial No. '$29,631.

have invented new and 'useful Improvements in Illuminated Signs, of which the following is a specitieatiml.

This invention relatesr to improvements in signs, the object lof the invention being to provide a 4sign which. when illuminated will be equally as conspicuous as signs of that character at present in use, but with a less expenditure of electricity or other source of light, and at the same time will be effective in the day-time a non-illuminated sign.

ln the actannpanying drawings,l"igure 1 is a broken front view of a portion of a sign constructed in accordance with the invention. Fig. 2 is a broken horizontal sect-ion on the line '2'2 of Fig. 1. Fig. J'is an enlarged. vertical cross-section. of the same on the line 3 3 of Fig. 1. Fig. 4 `is an enlarged sectional view of one of the reflectorsk used in connection with our improved sign, and Fig. 5 is a diagrannnatic view showing the course of the rays of light proceeding from the sign.

Referring to the drawings, 1 indicates sections of thesides of the sign, each section con-taining a single let-ter, said sections being preferably made of galvanized iron and their vertical edges 2 being bentto have a sliding fit With each other, so that anynumber of such letters can quickly be joined together, and then by clamping down said sides between the top 3 and bottom 4 the sign is formed complete. The interior surfaces of said sections and of the to and bottom of the sign are enameled, as s iown at 5, and in each section are cut circular apertures 6, arranged in the outline of a letter. On the outer side of the section around each aperture is secured a round eoncave reflector 7, made of glass or nickel-plated brass or other metal, so as to act as a reflector.- Between the top and bottom of the sign is secured a partition 8, having convex sides enameled on their outer surfaces, said partition being secured to the top and bottom edges of the sign by hooks 9 and screw-eyes 10, and said ed ges are spaced from said top and bottom of the sign to permit of electric lamps 11 being secured above and below the partition, so that one-half of each -lanip illuminates each side thereof. It is found that by this arrangement the light is reflected from the lamps to the outside reflectors in a very uniform manner. Moreover, the rays of light emerging from the interior of the sign are caused by said reflectors to converge, concentrating the light to some extent and producing equally as good an effect as signs in which a separate lamp is used at each spot where now is provided an aperture in the side of the sign. These reflectors also, on account of their bright glittering surface, make the sign very conspicuous and legible in the day-time. To increase this etl'ect, the letters around the apertures are preferably painted White, as shown at 12, while the main body of the sign is painted a darker color.

Ve claim- 1. Ina sign, the combination of a signbody having sides apertured in the form of the letters to be displayed, inner surfaces of the walls of the sign-body being suitably faced to reflect the light, lamps in the signbody, and concave apertured reflectors secured on the outside of the sign-body, each around one of the apertures in the sides there,- of, substantially as described.

2. In a sign, the combination of a signbody having sides 'apertured in theiform of the letters to be displayed, inner surfaces of the walls of the sign-body being suitably faced to reflect the light, lamps in the signbody, concave apertured reflectors secured on the outside of the sign-body, each around one of the apertures in thesides thereof, and a 'reflector in the interior of the sign, convex on each side, substantially as described.

3. In a sign, the combination of a signbody having sides in sections, each section 4apertured in the form of a letter to be displayed, inner surface of the Walls of the signbody beingsuitably faced to reflect the light, lamps in the sign-body, and concave apervtured reflectors secured on the outside of the sign-body, each around one of the apertures in the sides thereof, substantially as described. In testimony whereofwe ,have hereunto set our hands in the presence of two subscribing witnesses.

VILLIAM T. BRADSHAW. CHARLES I-I. TO WNSEND. OSCAR l". ERICKSON. f Witnesses W. P. WVOOLSEY, L. R. PUTZKER. 

